*{
    margin: 0;
    padding: 0;
}

#container{
    width: 375px;
    border: 1px solid #f1f1f1;
}

.padding{
    padding: 0 20px;
}

.flex{
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.header-old,.header-new{
    background-color: #e2e2e2;
}

.txt{
    border: 1px solid #fefefe;
}